Job Safety Analysis/ Job Hazard Analysis for the use of hand tools
Company Logo
Project:
JOB SAFET ANALYSIS
Ref No.: Rev No.:
Nitrogen Purging
Prepared by:
Description of Task Step
1.
Planning
1 of 2
Reviewed by:
Approved Approve d by:
Step No.
Page:
Date:
Control Measures/ Preventive Measures
Hazard
Lack of Communication Non-compliance
Energized Equipment
Pressurized Fluid
Nitrogen Cylinders / Unit
Flammable & / or Toxic Atmosphere
Unauthorized Work
Conduct a TBT to inform the workers of the tag & lock Plan the work involving personnel responsible for preparation (such as isolation, depressurization, draining, venting, flushing) of the equipment / system to be purged.
Responsible
Supervisor
Ensure the equipment / system to be purged is positively isolated from all sources of energy (hydraulic, pneumatic, electrical etc.) Use proper locks & tags for isolation Ensure the equipment / system is depressurized & content is drained safely. Arrange the adequate Nitrogen Cylinders / Unit considering the volume to be purged. Ensure the deployment of Nitrogen unit inside the plant does not create any hazard for the facility. Ensure the confined space is flushed, purged and thoroughly ventilated as required.
1
Company Logo
Project:
JOB SAFET ANALYSIS
Ref No.: Rev No.:
Nitrogen Purging
Step No.
Description of Task Step
Control Measures/ Preventive Measures
Hazard
2.
Purging
Improper / Defective Tools Rupture of Nitrogen Supply Hoses & Couplings Cold Burn Excess or Less Nitrogen Supply Unsafe Disposal of Purged Fluid Lack of Oxygen
3.
Windup & Housekeeping
Scattered Material
Page:
2 of 2
Responsible
Obtain the required permits from the permit issuer. Ensure the tools (such as N2 Unit, Pump, Hose, Coupling & Pressure Gauges etc) to be used are free from defect. Ensure the N2 supply hoses and couplings are rated for the required service and pressure. Stay away from the pressurized N2 hose & coupling to avoid cold burn in case of leak. Barricade the area & post warning notice. Calculate the amount of N2 required for the volume to be purged. Keep a close watch on the N2 supply flow meter. Ensure the disposal of purged volume to a safe location such as flare or vent. Do not enter a vessel / tank / pipeline which is purged with N2. Ensure proper wind up & housekeeping at worksite. The accessories (tools, hoses, couplings) must be disconnected and stored properly.
